The correct structure that corresponds to the spectroscopic data given below is

IR (cm-1): 2720, 1710.

1H NMR: δ9.80 (s, 1H), 7.50 (dd, J = 8.0, 2.0 Hz, 1H), 7.40 (d, J = 2.0 Hz, 1H), 6.90 (d, J = 8.0 Hz, 1H), 3.90 (s, 3H), 3.80 (s, 3H).

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